The three-minute video sees Joe, a London-based maths tutor, nervously approach strangers and ask them if they need help with anything.

The film was produced for Kindness.org, a new non-profit that encourages people to take part in acts of kindness and share them online. It was created by Action Productions, an "ethically-driven" creative agency.

"It was an incredibly brave thing to do. It’s not often that people approach strangers to purely offer their help. Joe was rejected a lot, but when people did accept his help, it was really moving for everyone involved," said Henry Hitchcox, Action's founder.